Ingeniero

SBD-8350

SERVICE MANUAL

Table of Contents

Circuit Diagram and Component Layout MPEG Board Circuit Diagram and Component Layout Power supply Circuit Diagram and Component Layout Front panel Circuit Diagram

Parts List

Power parts list MPEG parts list Front panel parts list

others exploded view bom

About the User Guide for Touch Screen, all Blue LEDs will be turned on at thefirst pressing. After then, Function Keys can be operated at the second pressing. Once the Blu-ray system is operated abnormally, the system will be hanged up due to circuit protection. If user unplugs the power cord, this system can normally be operated.

5

4

3

2

1

MT8550 General GPIO List
MT8550P3-V3 00. 01. 02. 03. 04. 05. 06. 07. 08. 09. 10. HISTORY & DIAGRAMPOWER SOURCE MT550 DDR CHA MT550 DDR CHB MT8550 AV MT8550 FLASH/USB/ETH/GPIO MT8550 STBY MCU VIDEO OUTPUT & SPDIF OUT AUDIO DAC MT8550 FE FE MOTOR DRIVER
Name
SPBCK SPDATA SPLRCK APMCLK MCIN AMUTE GPIO0 GPIO1 GPIO2 GPIO3 GPIO4 GPIO5 GPIO6 GPIO7 GPIO8 ETCOL ETCRS ETMDC ETMDIO ETRXCLK ETRXD0 ETRXD1 ETRXD2
C

PIN
F10 B9 A9 C9 D9 C8 D8 A7 B7 C7 AC4 AA5 AC3 AB4 J24 K20 F23 J25 K25 G24 F25 G20 H21G25 F24 E25 G23 G22 G21 H20 H23 L21 L22 L23 K22

Features
LED_SPEED NC LED_DUPLEX LED_LINK NC AMUTE USB_EN2# USB_EN0# USB_OC0# USB_OC2# DAC_RST# USB_OC1# PCM_DSD# USB_EN1# NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC VSTB VSDA VCLK P_RESET#

Name
FEGIO0 FEGIO1 FEGIO2 FEGIO3 FEGIO4 FEGIO5 FEGIO6 FEGIO7 FEGIO8 FEGIO9 FEGIO10 FEGIO11 FEGIO12 FEGIO13

PIN
T1 P4 T2 P6 U1 R4 P5 U2 T3 U3 T6T5 R5 V4

Features
MUTE1 MUTE2 JP2 LED1 LED2 GIO5 GIO6 GIO7 JP1 GIO9 URXD UTXD FESCLK FESDATA
D

D

Rev
V1.0 V2.0 The original released.

History

Date
2010/01/11

ETRXD3 ETRXDV ETRXER ETTXCLK ETTXD0 ETTXD1 ETTXD2 ETTXD3 VSTB VDATA VCLK

C

1),[Audio] Modify AUDIO_Mute to Amute; 2),[FE] Modify EQBias resistor from 23.2K_1% to 24K_1%; 3),[Audio] R741(0 OHM) modify to NC, R708modify from 100K/NC to 3.3M, and mount Q708(CES2301); 4),[Trapping] ETTXEN pull up resistor R522(10K) connect net modify from 3.3V to 3.3V_STB; 5),[FE] RF signal serial capacitor(C823,C825,C826,C827) value modify from 0.01uF to 0.1uF; 6),[FE] Update FB901 to L901(10uH); 1), [Ethernet] Delete 25MHz OSC circuit(OSC1,R417,C442); 2), [Power] remove 1.5V/3.3V power sequence circuit; 3), [FE] Delete oldVR circuit(Q800,Q801,R801,R806,R847); 4), [FE] Delete motor driver signal decap capacitor(C804,C807,C809,C811, C815,C805,C808,C810,C812);

2010/04/02

V3.0

2010/04/29

LCDRD

B

B

A

A

MediaTek Confidential
Title

MediaTek (ShenZhen) Inc.
MT8550_P3
Document Number Drawn: WenYuan

Size C
5 4 3 2

POWER SOURCE
Tuesday, July 13, 2010
1

Date:

Checked: HaiLi_Wang1 of Sheet

Rev 3.0 11

A

B

C

D

E

CNT
mark power net at connector bot

VCC VCC 12V_P N12V 5V_STBY C20 10uF/16V/X5R C0805/SMD C22 10uF/10V/X5R C0805/SMD C46 0.1uF/10V/X5R 12V_P VCC NC4 NC0805/SMD VCC_1.1V R3 R12 2.4K 10 1.1V_EN R20 10K C31 FB4 BLM21P BEAD/SMD/0805 0.1uF/10V U2 C33 C16 0.1uF/10V
Close to DC-DC

4

1 2 3 4 5 6 7 8

VCC 12V_P N12V PS_ON# 5V_STBY

1.1VPOWER 1.2V FB5 NC BEAD/SMD/0603 NC7 NC0805/SMD NC8 CE101 220uF/16V R2 6.65K_1% C1 NC C0603/SMD NC0805/SMD C10 10uF/6.3V/X5R C0805/SMD

OPWRSB RESET#

OPWRSB RESET#

(7) (7)

1 5 3 9

VCC EN GND TP
G5627

VIN LX FB REF PGND

8 7 4 2 6

C15

10uF/10V/X5R P1_GND C0805/SMD 10uF/10V/X5R C0805/SMD L2 LQH6PPN2R2N43
DC Current: 4.1A Saturation Current: 6.4A DC resistor: 15mOHM

1.1V4

J1

8P/2.54MM DIP8/W/H/P2.54

POWER CONNECTOR

1.1V_FB

+ C21 10uF/6.3V/X5R C0805/SMD

5V_STBY D306 1N4148 3.3V_STBY

C34 0.1uF/10V

1.1V_FB NC2 P1_GND NC0805/SMD

AIM 1.15V: 0.8*(6.65+15)/15=1.155V AIM 1.2V: 0.8*(7.87+15)/15=1.22V

U5
close to DC/DC

R7 15K_1%

1 2 3

VIN GND EN

VOUT

5
close to LDO

NC3 C4 1uF/6.3V/X5R C0603/SMD

NC0603/SMD

P1_GND...